Bolt assembly



' VAN NOTE BOLT ASSEMBLY Sept. 8, 1936.

7 Filed July 3, 1935 s Q W ww mm km N? 15 K93 m (INVENTOR. {fin l I ATTORNEY Patented Sept. 8, 1936 UNITED STATES BOLT ASSEMBLY Eugene Van Note, Kearny, N. J.

Application July 3,

7 Claims.

This invention relates to a bolt assembly adapted for use with a door which, when in operation will not only hold the door in tight position, but will eliminate the cause for rattles and noises.

A principal object of the invention is to provide a bolt assembly having in itself antirattling properties.

Another principal object of the invention is to provide a bolt assembly having a main bolt and a butt bolt, adapted under compression to hold a closed door against rattling.

Another principal object is to provide for contacting with the face plate of the door post, of the butt bolt before the main bolt has been extended its full length, and contemporaneously with such further extensions, to frictionally engage said face plate.

Other objects will be apparent from reading this specification in connection with the accompanying drawing, in which,

Figure 1 represents a cross section of a bolt g assembly embodying my invention; and

Figure 2 is a side elevation of such an assembly, looking at the same from the top.

Referring now in detail to the drawing, 3 is a door, adapted to swing on the hinge 4, which hinge is mounted on the door post 5. The opposite door post is shown at 6. The door casing, of which the door posts are a part, is provided with the usual stops I and 8, and the facing of the door casing is shown at 9 and I0.

Mounted on the door 3, by means of the fastenings II is: a housing I2 for the bolt assembly, which housing has a bolt-hole I3 to permit the sliding of the main and butt bolts therethrough. A main bolt I4 is provided, having a chamber I5 therein, said main bolt being supported at one end by the Walls forming the bolt-hole I3 and at the other end by the bracket I6, which is secured to the housing I2 by the fastenings I'I. This bracket I5 is provided with a flange I8 which extends over the main bolt I4. This flanged bracket with the walls of the bolt-hole, maintains the main bolt in constant alignment.

Extending from the main. bolt I4 and fixedly secured thereto is a spring support I9, which support protrudes freely through an opening in 55 tion of the bolt. A pin 23 extends through the 1935, Serial No. 29,715

spring support I9 at the end which protrudes through the wall 2% of the housing, to limit the inward movement of said spring support and with it the main bolt.

Adapted to be carried by and slide in the main 5 bolt I4, is a butt bolt 24, so named because a nose or projection 25 thereon is adapted to butt against the outer face 26 of the face plate 21. The butt bolt 24 is provided with two walls 28, parallel with each other, and extending longi- 10 tudinally of the butt bolt at the opposite sides thereof. Slots 29 are provided in each of said walls, and are arranged in pairs, one slot of each pair being in each of said walls, and the slots of such pair being located in parallel with 15 each other. Extending through the main bolt I4 and through each pair of slots 29, is a pin 30, said pin being integrally connected with the side walls of bolt I4, 'and extending across the chamber I5 thereof.

Between the two walls 28 of the butt bolt 24, is a block 3|, which is integrally supported in said walls. A spring support 32 is fixedly carried by said block 3| and has a sliding contact support with the block 22 at its opposite end 33. Carried by said spring support 32 is a coiled spring 24 which is normally compressed between the block 3| and the block 22. A collar 35 is fixedly secured to the end 33 of the spring support 32 to limit the extending movement of said support.

The main bolt I4 is provided with a bracket 36 fixed thereto, which carries the cylindrical support 31, for the roller 38. A pin 39 is passed through said support to secure the roller in place. An operating lever 40, having the handle 4|, is 35 swivelled at 42, which lever has a rolling contact with the roller 38. The said lever is provided with a stop surface 43 to limit the swing of the lever and with it the withdrawn position of the moving parts of the bolt assembly.

In the drawing, the assembly is shown fitted to a door in closed position. In order to open the door 3, the lever handle 4| is pressed downwardly, which, operating on the swivel 42, will enable the lever 40 to swing, and thereby through 45 its rolling contact with the roller 38 on the bearing of the fixed bracket 35 of the main bolt I4, will draw back the said bolt until the further movement thereof is arrested by the stop 43 of the lever 40 coming into contact with the said roller 38, at which position the bolt will have been withdrawn sufficiently to enable it to clear the face plate 21, and permit the opening of the door. In closing the door the main bolt I4 will ride down the face of the plate 21, and because of the spring mounting of said bolt, will be forced by the face of the rigidly mounted plate to be pressed inwardly until it clears the plate, when by spring pressure the bolt will be forced into the opening 44 where it will remain until released by the operation of the lever 40 as already described.

Upon the door being closed, the spring 2| pressing against the block 22, stationary in the main bolt I4, will press the bolt forward until further pressure is restrained by the stop action of the pin 23 against the wall 20 of the housing. The pressure thus exerted on the block 22, will be communicated to the block 3 I, hinged in the butt bolt 24, through the compressing of the spring 34, and will force said butt bolt forward until the nose or projection 25 thereof butts against the face plate as shown. In its travel forward the said butt bolt rides upwardly on the pins 30 through their cam action with the walls of the slots 29, thereby raising the butt bolt sufficiently to force the end thereof beyond said nose or projection, into frictional contact with the face 46 of the plate 2'1. It will be seen that the butt bolt by such action will have a dual frictional contact with the face plate 2?, namely, one, by reason of the pressure exerted by the spring 34, and the other, by reason of the cam action in the pins 30 cooperating with the walls of the slots 29. Upon the main bolt l 4 being withdrawn, the end 41 thereof will engage the butt bolt 24 and carry the same backward with it, and contract the same to clear the face plate 21.

I have shown and described what I believe to be the best embodiment of my invention. I do not wish to be limited in patent protection, however, to such embodiment, but what I desire to cover by patent is set forth in the accompanying claims.

1. In a bolt assembly, a main bolt and a butt bolt, in combination with a face plate, said butt bolt being slidably mounted within prescribed limits in said main bolt, and adapted to ride therewith, and means for expanding said butt bolt with reference to said main bolt upon said butt bolt contacting with the aforesaid face plate, and thereby increase the frictional contact between said butt bolt and said face plate.

2. The structure defined in claim 1, in which the means for expanding the butt bolt with reference to the main bolt consists of cam elements in the main bolt and butt bolt respectively, said cam elements being adapted to cooperate with each other.

3. The structure defined in claim 1, in which the butt bolt is provided with a projection a predetermined distance from its service end, which projection is adapted to contact with the face plate, and thereby arrest the further forward ride of the butt bolt with the main bolt.

4. In a bolt assembly, a main bolt and a butt bolt, means for thrusting forward said main bolt, and with it said butt bolt, means for arresting the forward movement of said butt bolt while the thrust of the main bolt is continuing, and means operable by the relative sliding of the main bolt on the butt bolt to expand said butt bolt with reference to said main bolt.

5. The structure defined in claim 4, in which the means for thrusting forward the main bolt and with it the butt bolt, consists of a compression spring operating on an integral part of the main bolt so as to exert its pressure thereon.

6. The structure defined in claim 4, in which the means for arresting the forward movement of the butt bolt comprises a projection on said butt bolt adapted to engage a face plate in combination with which said bolt assembly is operated.

'Z. The structure defined in claim 4, in which the main bolt and the butt bolt are each provided with a block carried respectively thereby, and a compressed spring between said blocks adapted to exert pressure against the block of the butt bolt.

EUGENE VAN NOTE. 

